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How to convert currency string to floating point number using Javascript

I have a textbox that will have a currency string in it and I need to convert that string to a double precision float to perform some operations. "$1,100.00"→1100.00 This needs to be done on the client side. I have no choice but to keep the currency string as input, but need to cast it to ...

P粉593118425 2023-08-23 22:49:40

python3.x - Question 6 of getting json from python's simulated trading api with oanda

I solved the ordering problem with everyone's help in Question 3, but when I tested the historical data today, I discovered a strange thing. I want to operate on 6 currency pairs (GBP_USD, EUR_USD, USD_CAD and USD_CHF, USD_JPY, AUD_USD). I want GBP_USD, EUR_US...

PHP中文网 2017-06-12 09:27:26

How to filter content cards on a page?

I created a blog post with three categories: (Digital Marketing Category, Tips & Advice Category, Cryptocurrency Category) What I want to do is filter it. For example, if I want to see all articles in the Digital Marketing category, I will click this button to show all Digital Marketing categori...

P粉680487967 2024-03-30 19:18:27

Functionality without using <br> html to add line breaks

I'm currently learning VueJS and I've made a simple app that pulls information from an API and displays facts about a country based on a given 2 letter country code. Data retrieved from the API is mapped to country and properties. It stores detailed information about a country such as time zone, cur...

P粉567112391 2023-09-08 15:34:08

python - Are there any good resources for collecting money funds?

I am currently engaged in data analysis-related work, and I first want to collect some historical records on the daily income of 10,000 yuan for financial products such as currency funds, such as Yu'ebao, Huitian Fund Quanbao, China Asset Management Fortune Bao, etc. Of course, this demand is the re...

给我你的怀抱 2017-06-12 09:25:53

Laravel Blade: compare string to object

I'm running into a strange problem when comparing an object to a string in a Laravel blade file. I have a variable that can be a string ("N/A") or an object depending on the result of the database query, and I have the following conditional check: @if($a_string_name=='N/A') if it returns a...

P粉797855790 2023-09-01 21:44:49

How to change the image in the countdown

I'm trying to get this countdown to display an image of the numbers in the time remaining. nailed it. I'm trying to get it to put these numbers on an image. Finally got it done. Now I'm trying to get the numbers to stop showing and project them onto an image with 1 day left to change. Failed! I also...

P粉668113768 2023-08-17 18:43:07

Create an animated counter in React.js: a step-by-step guide

I'm looking for a way to animate a counter in React. For example, I have 3 components with the following structure: Master: Logical component Counter (Master is the parent of logicComponent and Counter) The logical component passes a number to the master component which passes it to the counter whic...

P粉635509719 2023-10-21 19:46:40

Limitations before a table can be sharded or partitioned

I'm new to database system design. After reading many articles, I am really confused what is the limit we should have 1 table without sharding or partitioning. I know it's really difficult to provide a general answer, things depend on factors like row size, data type (string, blob, etc.), number of ...

P粉190883225 2024-01-16 13:32:16

MySQL runs automated scripts

I have a MySQL database with two tables: drivers and devices. The drivers table has a field called expirationdate. The devices table has a field called status. My goal is to create an event that will: Get the current date Compare the drivers(expirationdate) with the current date If the expiration da...

P粉821231319 2023-08-18 11:24:32

In a multi-user environment, how does tp5 verify whether the data has been modified by others before it is submitted and saved? Is there any built-in verification method?

In a multi-user environment, multiple users view and modify the same piece of data. How to verify that the data has not been modified by other users before the user submits and saves it? I want to add a timestamp field to the database table design to save the data modification time. time, and then p...

phpcn_u16587 2018-01-05 02:05:53

Update transaction value in mongodb

I'm making a Mern project and I need to update two fields in a mongodb record. I have two fields, one is an array of objects called wallets and the other is transactions. I get an object from the frontend which includes the amount, index of the wallet where the transaction was made, as wallet is an ...

P粉546257913 2023-09-13 19:30:49

How to sort query results according to fields of another table through chain operations in TP5

Specific situation: one user table and the other is a user level table. I query (select) the information of the user table and want to sort it according to the power field of the user level table. What I wrote myself is to query the records one by one through a for loop and then write them to In a t...

葫芦娃平衡盘 2018-04-19 16:50:01

NextJS using Django API - how to choose the best pattern

I'm running GeoDjango on a Digital Ocean Droplet and I'm rewriting the project from VueJs to NextJs hosted on Vercel. In Vue, we have the storage-related service model, which is responsible for getting and updating data. I found the fetch part to be pretty good, but I'm still trying to figure out th...

P粉032977207 2024-01-10 16:58:42

Updating existing codebase to PHP 8.1: Handling non-nullable internal function parameters with Null values

I've just started upgrading my code to be compatible with php8.1. I have a lot of code snippets where I'm passing potential null values to inner functions. if(strlen($row)>0){...} where $row comes from a source that may have null values (such as a query). This may generate a deprecation warni...

P粉344355715 2023-10-31 20:01:48

SQL method to return data from multiple tables based on column names

I'm trying to do something a little weird but can't figure out the right way to accomplish it. Essentially, I'm trying to extract all tables/views and columns where the column name is like a certain string. Beyond that, I want to extract 1 row of data from that table/view and column combination. The...

P粉904450959 2024-02-21 19:21:21

Please update the source code online for reference

The situation is like this. I found a domain name authorization control system on the Internet and I am very interested in using it for research. But the code updated online cannot be debugged no matter how hard it is. I hope the master will write a case for reference. The general meaning is that wh...

phpcn_u63796 2017-11-22 00:04:26

Sequentially rename files on upload based on existing files in directory

I'm using this (php) upload code I found online for an image upload form. I realize there are already a lot of questions/answers on the site about "renaming files" when uploading, and I've researched them quite a bit. So far...none of them seem to specifically address what I want to do. Ho...

P粉310931198 2023-09-10 13:14:12